Changes of trabecular bone under control of biologically mechanical mechanism

C. Wang; C. Q. Zhang; X. Dong; H. Wu

doi:10.1117/12.806670

13 October 2008 Changes of trabecular bone under control of biologically mechanical mechanism

C. Wang, C. Q. Zhang, X. Dong, H. Wu

Proceedings Volume 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment; 71281E (2008) https://doi.org/10.1117/12.806670
Event: Seventh International Symposium on Instrumentation and Control Technology, 2008, Beijing, China

Abstract

In this study, a biological process of bone remodeling was considered as a closed loop feedback control system, which enables bone to optimize and renew itself over a lifetime. A novel idea of combining strain-adaptive and damage-induced remodeling algorithms at Basic Multicellular Unit (BMU) level was introduced. In order to make the outcomes get closer to clinical observation, the stochastic occurrence of microdamage was involved and a hypothesis that remodeling activation probability is related to the value of damage rate was assumed. Integrated with Finite Element Analysis (FEA), the changes of trabecular bone in morphology and material properties were simulated in the course of five years. The results suggest that deterioration and anisotropy of trabecluar bone are inevitable with natural aging, and that compression rather than tension can be applied to strengthen the ability of resistance to fracture. This investigation helps to gain more insight the mechanism of bone loss and identify improved treatment and prevention for osteoporosis or stress fracture.

Citation Download Citation

C. Wang, C. Q. Zhang, X. Dong, and H. Wu "Changes of trabecular bone under control of biologically mechanical mechanism", Proc. SPIE 7128, Seventh International Symposium on Instrumentation and Control Technology: Measurement Theory and Systems and Aeronautical Equipment, 71281E (13 October 2008); https://doi.org/10.1117/12.806670

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